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Finding the Fourth Proportional to 576.23, 863.72 and 283.32

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Solution

The fourth proportional to 576.23, 863.72 and 283.32 is: 424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.23 : 863.72 = 283.32 : x
  2. Step 2: Convert to fraction form
    576.23/863.72 = 283.32/x
  3. Step 3: Cross multiply
    576.23x = 863.72 × 283.32
  4. Step 4: Simplify right side
    576.23x = 244,709.86
  5. Step 5: Solve for x
    x = 244,709.86/576.23
  6. Step 6: Final answer
    x = 424.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.